Define Turnout (switch) and what are its components?

• A. A device that measures track occupancy on a straight section.
• B. A signaling device for speed control.
• C. A device enabling a train to move from one track to another; components include points, blades, stock rail, and crossovers or switch motors.
• D. A system for passenger announcements.

Answer: (C)

Turnout is a device that enables a train to move from one track to another. It works by using a pair of movable rails, called the points or switch blades, which can be shifted to line up with either the straight route or the diverging route. The fixed rail on the opposite side is the stock rail, which forms the boundary of the turnout. The movement is powered by a switch motor or actuator, and the crossing where the rails intersect is a frog. These components together provide the physical mechanism that redirects trains between tracks.